Dy~(3+)、Tm~(3+)共掺杂Ca_2MgSi_2O_7的发光特性
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摘要
采用高温固相法合成了系列Ca_2MgSi_2O_7∶Dy~(3+),Tm~(3+)发光材料。对样品进行了XRD结构表征,测量了激发光谱、发射光谱、色温和荧光寿命。研究结果表明,Ca_2MgSi_2O_7∶Tm~(3+)在355 nm激发下显示出蓝色发光,在CIE1931中的色坐标为x=0.165 9,y=0.082 2,色纯度为89%。通过Dy~(3+)和Tm~(3+)的叠加激发谱带激发,即在349,353,365 nm激发下,Ca_2MgSi_2O_7∶Dy~(3+),Tm~(3+)显示出青白、冷白和暖白光,相关色温值分别为5 193,9 672,4 685 K。300~500 nm区域间可以有效地激发Ca_2MgSi_2O_7∶Dy~(3+),Tm~(3+),并在400~600 nm之间产生蓝光和黄光复合产生的白光,表明该体系可用作白光LED的发光材料。
A series of Ca_2MgSi_2O_7∶ Dy~(3+),Tm~(3+)luminescent materials were synthesized by high temperature solid phase method. The samples were characterized by XRD structure,and the excitation spectra,emission spectra,color temperature and fluorescence lifetime were measured. The results show that Ca_2MgSi_2O_7∶ Tm~(3+)exhibits blue luminescence under the excitation of 355 nm. The color coordinate in CIE1931 is x = 0. 165 9,y = 0. 082 2,and the color purity is 89%.Excited by the superposition excitation bands of Dy~(3+)and Tm~(3+)( 349,353,365 nm),Ca_2MgSi_2O_7∶ Dy~(3+),Tm~(3+)phosphors show bright white,cool white and warm white light,and the correlation color values are5 193,9 672,4 685 K,respectively. In conclusion,Ca_2MgSi_2O_7∶ Dy~(3+)and Tm~(3+)can be effectively excited by 300-500 nm regions and emit white light produced by blue and yellow light combinations between 400-600 nm,shows that the system can be used as a luminescent material for white LED.
A series of Ca_2MgSi_2O_7∶ Dy~(3+),Tm~(3+)luminescent materials were synthesized by high temperature solid phase method. The samples were characterized by XRD structure,and the excitation spectra,emission spectra,color temperature and fluorescence lifetime were measured. The results show that Ca_2MgSi_2O_7∶ Tm~(3+)exhibits blue luminescence under the excitation of 355 nm. The color coordinate in CIE1931 is x = 0. 165 9,y = 0. 082 2,and the color purity is 89%.Excited by the superposition excitation bands of Dy~(3+)and Tm~(3+)( 349,353,365 nm),Ca_2MgSi_2O_7∶ Dy~(3+),Tm~(3+)phosphors show bright white,cool white and warm white light,and the correlation color values are5 193,9 672,4 685 K,respectively. In conclusion,Ca_2MgSi_2O_7∶ Dy~(3+)and Tm~(3+)can be effectively excited by 300-500 nm regions and emit white light produced by blue and yellow light combinations between 400-600 nm,shows that the system can be used as a luminescent material for white LED.
引文
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[25]王齐祖,田军,杨晓鸿,等.Tb3+,Dy3+激活的La BO3的发光和能量传递[J].发光学报,1995,16(1):57-62.WANG Q J,TIAN J,YANG X H,et al..Luminescence and energy transfer of the activated[J].Chin.J.Lumin.,1995,16(1):57-62.(in Chinese)
[26]MEZA-ROCHA A N,SPEGHINI A,LOZADA-MORALES R,et al..Blue and white light emission in Tm3+,and Tm3+/Dy3+,doped zinc phosphate glasses upon UV light excitation[J].Opt.Mater.,2016,58:183-187.
[27]BLASSE G,GRABMAIER B C.Luminescent Materials[M].Berlin:Springer-Verlag,1994:95.
[2]陈永虎,施朝淑.长余辉材料Sr2Mg Si2O7∶Eu,Dy中稀土离子的发光特性[J].发光学报,2006,27(1):41-46.CHEN Y H,SHI Z S.Long persistence material Sr2Mg Si2O7emission characteristics of rare earth ions in Eu and Dy[J].Chin.J.Lumin.,2006,27(1):41-46.(in Chinese)
[3]林莹,高绍康,王桂美.新型荧光粉Ca2Mg Si2O7∶Eu3+的制备及发光特性的研究[C].中国化学会学术年会,长春,2006.LIN Y,GAO S K,WANG G M.Preparation and luminescent properties of new phosphor Ca2Mg Si2O7∶Eu3+[C].Annual Meeting of Chinese Chemical Society,Changchun,2006.(in Chinese)
[4]夏威,雷明凯,罗昔贤,等.宽激发带稀土激活碱土金属硅酸盐发光材料特性研究[J].光谱学与光谱分析,2008,28(1):41-46.XIA W,LEI M K,LUO X X,et al..Study on characteristics of rare earth activated alkaline earth metal silicate luminescent materials[J].Spectrosc.Spect.Anal.,2008,28(1):41-46.(in Chinese)
[5]马红萍.溶胶-凝胶法制备的Ca2Mg Si2O7∶Ce,Tb荧光粉的光学特性[J].光学学报,2009,29(2):432-437.MA H P.Optical properties of Ca2Mg Si2O7∶Ce,Tb phosphors prepared by a sol-gel method[J].Acta Opt.Sinica,2009,29(2):432-437.(in Chinese)
[6]章少华,胡江峰,王建军,等.Ce3+和Y3+掺杂对Ca2Mg Si2O7∶Eu2+荧光粉发光性能的影响[J].材料导报,2010,24(6):8-10.ZHANG S H,HU J F,WANG J J,et al..Effects of Ce3+and Y3+doping on luminescence properties of Ca2Mg Si2O7∶Eu2+phosphors[J].Mater.Rev.,2010,24(6):8-10.(in Chinese)
[7]翟永清,王莉莉,马健,等.微波辅助凝胶燃烧法合成红色荧光粉Ca2Mg Si2O7∶Eu3+及性质研究[J].人工晶体学报,2013,42(1):78-83.ZHAI Y Q,WANG L L,MA J,et al..Synthesis of red phosphor Ca2Mg Si2O7∶Eu3+by microwave assisted gel combustion method and its properties[J].J.Synth.Cryst.,2013,42(1):78-83.(in Chinese)
[8]ZHANG X Q,DONG L M,TANG X C,et al..Preparation and luminescent properties of single white Ca2Mg Si2O7∶Eu3+,Ce3+,Tb3+phosphor for WLED[J].Adv.Mater.Res.,2014,989-994:395-398.
[9]SAHU I P,BISEN D P,BRAHME N,et al..Enhancement of the photoluminescence and long afterglow properties of Sr2Mg Si2O7∶Eu2+phosphorby Dy3+co-doping[J].Res.Chem.Intermed.,2015,42(3):1823-1843.
[10]PANDEY D,BRAHME N,SHARMA R,et al..Synthesis photoluminescence study of Ca2Mg Si2O7∶Ce,Dy,Eu microphosphor[J].Adv.Phys.Lett.,2016,3(2):18-23.
[11]KANG F W,HAN J,PENG M Y.Verifying the“controversial”available sites via typical Bi3+luminescent feature:exemplarily based on the Ca2Mg Si2O7∶Bi3+phosphor[J].Appl.Chem.,2016,12:1421-1427.
[12]SAHU I P,BISEN D P,BRAHME N,et al..Luminescence studies of Sr2Mg Si2O7∶Eu2+,Dy3+phosphor prepared by solid state reaction method[J].Int.J.Lumin.Appl.,2015,5(4):414-422.
[13]ZHANG H,FU X,NIU S,et al..Blue luminescence of nanocrystalline Ca Zr O3∶Tm phosphors synthesized by a modified Pechini sol-gel method[J].J.Lumin..2008,128(8):1348-1352.
[14]宋峰,苏静,谭浩,等.钨酸钇钠晶体中Tm3+的光谱特性[J].物理学报,2004,53(10):3591-3595.SONG F,SU J,TAN H,et al..Spectral characteristics of Tm3+in yttrium tungstate crystal[J].Acta Phys.Sinica,2004,53(10):3591-3595.(in Chinese)
[15]刘金霞,吕树臣.纳米晶Zr O2∶Tm3+制备与发光性质研究[J].人工晶体学报,2006,35(5):1129-1132.LUI J X,LU S C.Study on preparation and luminescence properties ofnanocrystalline Zr O2∶Tm3+[J].J.Synth.Cryst.,2006,35(5):1129-1132.(in Chinese)
[16]刘丽艳,孙一丹,于湛,等.稀土Dy3+,Tm3+单掺杂的Zn B4O7磷光体的热释光[J].应用化学,2014,31(7):835-840.LIU L Y,SUN Y D,YU Z,et al..Thermoluminescence of rare earth Dy3+and Tm3+single doped Zn B4O7phosphors[J].Appl.Chem.,2014.31(7):835-840.(in Chinese)
[17]CALDIO U,LIRA A,MEZA-ROCHA A N,et al..White light generation in Dy3+and Ce3+/Dy3+doped zinc-sodiumaluminosilicate glasses[J].J.Lumin.,2015,167:327-332.
[18]LAKSHMINARAYANA G,YANG H,QIU J.White light emission from Tm3+/Dy3+,co-doped oxyfluoride germanate glasses under UV light excitation[J].J.Solid State Chem.,2009,182(4):669-676.
[19]孙家跃,社海燕,胡文祥.固体发光材料[M].北京:化学工业出版社,2003.SUN J Y,DU H Y,HU W X.Solid Luminescent Material[M].Beijing:Chemical Industry Press,2003.(in Chinese)
[20]杨志平,刘鹏飞,宋延春,等.白光LED用Ba3La(PO4)3∶Dy3+荧光粉的制备与发光性能[J].发光学报,2013,34(1):35-39.YANG Z P,LIU P F,CONG Y C,et al..The preparation and luminescence properties of Ba3La(PO4)3∶Dy3+phosphor powder were used in white LED[J].Chin.J.Lumin.,2013,34(1):35-39.(in Chinese)
[21]HAN B,ZHANG J,LI P J,et al..KBa BP2O8∶Tm3+a novel blue-emitting phosphor with high color purity[J].Jetp Lett.,2014,99(10):561-564.
[22]FERHI M,HORCHANI-NAIFER K,FRID M.Hydrothermal synthesis and photoluminescence of the monophosphate La PO4∶Eu(5%)[J].J.Lumin.,2008,128(11):1777-1782.
[23]HE H,FU R,SONG X,et al..Observation of fluorescence and phosphorescence in Ca2Mg Si2O7∶Eu2+,Dy3+phosphors[J].J.Electrochem.Soc.,2010,157(3):J69-J73.
[24]赵谡玲,侯延冰,徐征.不同波长激发下YLi F4∶Er3+,Tm3+,Yb3+的发光[J].发光学报,2006,27(2):191-195.ZHAO J L,HOU Y B,XU Z.Luminescence of YLi F4∶Er3+,Tm3+and Yb3+excited by different wavelengths[J].Chin.J.Lumin.,2006,27(2):191-195.(in Chinese)
[25]王齐祖,田军,杨晓鸿,等.Tb3+,Dy3+激活的La BO3的发光和能量传递[J].发光学报,1995,16(1):57-62.WANG Q J,TIAN J,YANG X H,et al..Luminescence and energy transfer of the activated[J].Chin.J.Lumin.,1995,16(1):57-62.(in Chinese)
[26]MEZA-ROCHA A N,SPEGHINI A,LOZADA-MORALES R,et al..Blue and white light emission in Tm3+,and Tm3+/Dy3+,doped zinc phosphate glasses upon UV light excitation[J].Opt.Mater.,2016,58:183-187.
[27]BLASSE G,GRABMAIER B C.Luminescent Materials[M].Berlin:Springer-Verlag,1994:95.